General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240804-a2bx7avgqh

  • MD5

    94050f9434efcd579e1be0f1698dc4be

  • SHA1

    b1f9f9bb740805af70d91fd8dc16034fe6108b86

  • SHA256

    0fff45906cb1259652e8488ce8b7ce888a63c97332d9e3c7eb93b4c2aac1ea38

  • SHA512

    ed580833c456aafdd84871883f9bd2820e9c6a07e3402f69d5c632498491dba399c6e2464ef9379c944e7a4859ed634803d348d9ea24beb27d8dec47b64c09ad

  • SSDEEP

    49152:Pvkt62XlaSFNWPjljiFa2RoUYINdxNESEck/igLoGd065THHB72eh2NT:Pv462XlaSFNWPjljiFXRoUYI7x/+

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

127.0.0.1:80

Mutex

511efb52-a9ae-4985-832e-16d38c44402d

Attributes
  • encryption_key

    049DD0CDFAFA72509A542346F4510116A4D0866B

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      94050f9434efcd579e1be0f1698dc4be

    • SHA1

      b1f9f9bb740805af70d91fd8dc16034fe6108b86

    • SHA256

      0fff45906cb1259652e8488ce8b7ce888a63c97332d9e3c7eb93b4c2aac1ea38

    • SHA512

      ed580833c456aafdd84871883f9bd2820e9c6a07e3402f69d5c632498491dba399c6e2464ef9379c944e7a4859ed634803d348d9ea24beb27d8dec47b64c09ad

    • SSDEEP

      49152:Pvkt62XlaSFNWPjljiFa2RoUYINdxNESEck/igLoGd065THHB72eh2NT:Pv462XlaSFNWPjljiFXRoUYI7x/+

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Matrix

Tasks